Separation of Charge-regulated Polyelectrolytes by pH-assisted Diffusiophoresis
學年 105
學期 2
出版（發表）日期 2017-03-07
作品名稱 Separation of Charge-regulated Polyelectrolytes by pH-assisted Diffusiophoresis
作品名稱（其他語言）
著者 Jyh-Ping Hsu; Yen-Rei Hsu; Hsieh Shang-Hung; Shiojenn Tseng
單位
出版者
著錄名稱、卷期、頁數 Physical Chemistry Chemical Physics 19, p.9059-9063
摘要 The potential of separating colloidal particles through simultaneous application of a salt gradient and a pH gradient, or pH-assisted diffusiophoresis, is evaluated by considering the case of spherical polyelectrolytes (PEs) having different equilibrium dissociation constants in an aqueous solution with KCl as the background salt. The simulation results gathered reveal that the dependence of the particle velocity on pH is more sensitive than that in pH-assisted electrophoresis, where an electric field and a pH gradient are applied simultaneously. This implies that the separation efficiency of pH-assisted diffusiophoresis can be better than that of pH-assisted electrophoresis. In particular, two types of PE having different equilibrium dissociation constants can be separated effectively by applying the former by enhancing/reducing their diffusiophoretic velocities.
關鍵字
語言 en_US
ISSN
期刊性質 國外
收錄於 SCI EI
產學合作
通訊作者
審稿制度 否
國別 TWN
公開徵稿
出版型式 ,電子版
相關連結

機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/113111 )